Mercury 807260A2 Flywheel Cover Assembly – MerCruiser V6, V8 & High-Performance
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Mercury 807260A2 – Flywheel Cover Assembly | MerCruiser Gasoline Engines
Part Number: 807260A2
Supersedes: 812600A2, 818719A1, 818719A3
Brand: Mercury Marine
Type: Flywheel Cover Assembly
Mounting Location: Flywheel Housing
Configuration: Selected 8-inch starter motor applications
GTIN: 745061286528
Genuine Mercury Marine replacement flywheel cover assembly for a wide range of MerCruiser gasoline sterndrive and inboard engines. The cover mounts directly to the flywheel housing and protects the flywheel and starter area. 807260A2 supersedes earlier part numbers 812600A2, 818719A1, and 818719A3.
Compatible Applications
- 4.3L V6 MerCruiser – selected configurations
- 5.0L V8 MerCruiser – selected configurations
- 5.7L / 350 MAG MerCruiser – selected configurations
- 6.2L / 377 MAG MerCruiser – selected configurations
- 7.4L / 454 MerCruiser – selected configurations
- 502 CID high-performance MerCruiser – selected configurations
- Additional sterndrive and inboard configurations using the corresponding flywheel housing assembly
Serial Number Notice: Confirm your engine serial number, flywheel-housing diagram, and starter motor configuration before ordering. MerCruiser applications distinguish between covers used with 8-inch and 12-inch starter motors — engine displacement alone is not sufficient to confirm fitment. Always verify against the flywheel-housing diagram for your specific engine.
When to Replace
- Cover is cracked, broken, or physically distorted
- Heavy corrosion affecting structural integrity or mounting surfaces
- Cover is missing entirely
- Any time the flywheel housing or starter motor is being serviced and the cover is found damaged
Installation Notes
- Inspect the flywheel housing, cover mounting points, and attaching hardware before installation
- Inspect the starter motor and surrounding area for wear or damage while the cover is removed
- Secure the cover to the flywheel housing using the specified hardware per the applicable MerCruiser service procedure
- Verify all fasteners are properly torqued before returning the engine to service
Part Numbers & Cross-Reference
- Mercury Marine (current): 807260A2
- Supersedes: 812600A2
- Supersedes: 818719A1
- Supersedes: 818719A3
- GTIN: 745061286528
Parts Desk Insights
An important note on this part: 807260A2 is a flywheel cover assembly, not a thermostat cover. It’s easy to confuse the two based on the “COVER ASSY” description, but the flywheel cover mounts at the flywheel housing, not the cooling system. The most critical fitment check beyond engine displacement is the starter motor size — 8-inch vs. 12-inch starter configurations use different covers. If your service manual references 812600A2, 818719A1, or 818719A3, 807260A2 is the current replacement for all three.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.